Drive chains and sprockets are components of chain drives for conveyors, transporters, agricultural machinery, and industrial equipment. Roller chains: single-strand (08B, 10B, 12B, 16B according to ISO 606), double-strand, and triple-strand (for increased loads). Pitch 12.7–50.8 mm. Special types: stainless steel (for food industry), nickel-plated, with extended pins (for conveyors with attachments). Sprockets: Z = 9–100 teeth, made of C45 steel with tooth hardening HRC 40–50. Calculation: based on power and speed → selection of chain pitch → selection of sprocket. Production: Russia and import. 12-month warranty. Service maintenance. Commissioning and personnel training. Documentation: passport, operating manual, conformity certificate TR CU. Supplies within Russia and for export. Spare parts available in stock. Technical consultation on equipment selection. Performance calculation for the customer's task. Delivery and turnkey installation possible.